Sound-insulating device for an induction machine

Details Sound-insulating device for an induction machine Sound-insulating device for an induction machine

H - Electricity

01

F

H01F 27/33 (2006.01) H01F 27/32 (2006.01)

Patent

CA 2377967

The present invention relates to a sound-insulating device for a stationary induction machine with an active part, an insulating fluid surrounding the active part, and a tank enclosing the insulating fluid. The sound-absorbing device comprises a gas-filled cavity (1) and a resilient membrane (2, 3) surrounding the gas-filled cavity, thus obtaining a sound-insulating device which is extremely compressible. In the induction machine, the device is arranged between the active part and the tank of the induction machine and spaced from the inside of the tank. The sound-insulating device preferably has an extent in one plane, whereby the device has a membrane portion (2) facing the active part and a membrane portion (3) facing the tank. Preferably, at least one of the membrane portions has at least one corrugated region (8), and a spacing membrane (12) is arranged in the cavity (1) making contact with the membrane portion (2, 3) at at least two points.

L'invention concerne un dispositif insonore pour machine à induction stationnaire, comprenant une partie active, un fluide isolant entourant la partie active et un réservoir renfermant le fluide isolant. Le dispositif insonore comprend une cavité (1) à gaz et une membrane élastique (2, 3) entourant la cavité à gaz, constituant ainsi un dispositif insonore extrêmement compressible. Dans la machine à induction, le dispositif est situé entre la partie active et le réservoir de la machine à induction, et espacé de l'intérieur du réservoir. Le dispositif insonore s'étend, de préférence, sur un plan, et comprend une membrane (2) face à la partie active et une membrane (3) face au réservoir. De préférence, au moins une des membranes possède au moins une zone ondulée (8), et un élément d'espacement (12) est situé dans la cavité (1), en contact avec la membrane (2, 3) et au moins deux points.

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